net-snmp

SNMP:
  Versions:
    3
  Engine Boots: 2
  Engineid Data: 80001f8880cec2a52526000000
  Enterprise: 8072
  Engine Time: 34 days, 19:08:55

HTTP/1.1 401 Unauthorized
Content-Length: 0
WWW-Authenticate: Digest realm="IgdAuthentication", domain="/", nonce="ZDlmZTAyZTg6NDRkMDY4NWM6MzFiMTgxZWE=", qop="auth", algorithm=MD5, opaque="5ccc09c403ebaf9f0171e9517f40e41"